netdev - Re: [Bugme-new] [Bug 8638] New: unregister_netdevice: waiting for ppp0 to become free. pppoe + multihome + htb qos?

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Message-ID: <46769D06.3050603@redhat.com>
Date:	Mon, 18 Jun 2007 10:56:06 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	netdev@...r.kernel.org,
	"bugme-daemon@...nel-bugs.osdl.org" 
	<bugme-daemon@...nel-bugs.osdl.org>,
	Paul Mackerras <paulus@...ba.org>, kernelbugs@...nopolis.ca
Subject: Re: [Bugme-new] [Bug 8638] New: unregister_netdevice: waiting for
 ppp0 to become free. pppoe + multihome + htb qos?


Is there any way to print the addresses the notifier is calling
to try and release net device references? I see:

net/core/dev/c::netdev_wait_allrefs():

        while (atomic_read(&dev->refcnt) != 0) {
                if (time_after(jiffies, rebroadcast_time + 1 * HZ)) {
                        rtnl_lock();

                        /* Rebroadcast unregister notification */
                        raw_notifier_call_chain(&netdev_chain,
                                            NETDEV_UNREGISTER, dev);

but don't see any way to print the functions that get called.
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